📚 Topic Summary
Man-made materials are materials that humans create by changing natural resources. Unlike natural materials like wood or cotton, man-made materials are produced through various processes, often involving chemical reactions or physical alterations. These materials are all around us, from the plastic toys we play with to the synthetic fabrics in our clothes. Understanding the difference between natural and man-made materials helps us appreciate how humans use science and technology to create the world around us.
🧪 Part A: Vocabulary
Match the words with their definitions:
| Word |
Definition |
| 1. Plastic |
a. A material made from melted sand, used for windows and bottles. |
| 2. Fabric |
b. A strong material made from iron and carbon. |
| 3. Glass |
c. A material that can be molded into different shapes when heated. |
| 4. Metal |
d. A material made by weaving fibers together, used for clothing. |
| 5. Steel |
e. A hard, shiny material, often used for tools and building. |
🧱 Part B: Fill in the Blanks
Fill in the blanks with the correct words from the word bank: plastic, fabric, glass
- My shirt is made of __________.
- Windows are often made of __________.
- Many toys are made of __________.
🤔 Part C: Critical Thinking
Can you think of three man-made materials you see in your classroom or at home? Why are they useful?